A tuning fork of frequency 256 Hz is excited and held at the mouth of resonance column of frequ

step 1 In this question we will learn about some basic concept of the number of beats. The question is,

A tuning fork of frequency 256 Hz is excited and held at...

A tuning fork of frequency $256 \mathrm{~Hz}$ is excited and held at the mouth of resonance column of frequency $254 \mathrm{~Hz}$. Choose the correct statement; (A) 2 beats per second will be heard (B) 4 beats per second will be heard (C) 1 beat per second will be heard (D) No beat will be heard

A tuning fork of frequency $256 \mathrm{~Hz}$ is excited and held at the mouth of resonance column of frequency $254 \mathrm{~Hz}$. Choose the correct statement;
(A) 2 beats per second will be heard
(B) 4 beats per second will be heard
(C) 1 beat per second will be heard
(D) No beat will be heard

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Key Concepts

Frequency

Frequency refers to the number of oscillations or cycles that a sound wave completes per second, measured in Hertz (Hz). In acoustics, a higher frequency indicates a higher-pitched sound, and small differences in frequency between two sources can lead to noticeable phenomena such as beats.

Beat Frequency

Beat frequency is a phenomenon that occurs when two sound waves of similar but not identical frequencies interfere with each other, leading to periodic fluctuations in the amplitude of the resulting sound. The beat frequency is equal to the absolute difference between the two frequencies, and it determines how many amplitude peaks (or beats) are heard per second.

Resonance

Resonance occurs when a system is driven by an external force at a frequency that is close to its natural frequency, resulting in a significant increase in the amplitude of the vibrations. In acoustical contexts, this can result in enhanced sound production if the driving frequency closely matches the resonant frequency of the medium or structure.

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